ASA 5545 session hangs up.

[Tuba]

We have ASA 5545, when we execute show run or show run | in ... , the session hangs and does not come back. this issue happen only in the active unit. The standby mode, session comes back immediately.

I did not have any high CPU, leak memory, overrun or any huge traffic on ASA.

But we faced a failover trigger process before 3 days, the active unit became failed due to interface failed and secondary became active. after that, the secondary failed and the active became standby unit.

[Mohammed al Baqari]

I have seen this before and most of the time its either low free memory or
a bug. I don't recall the ASA code version but worth checking with TAC and
maybe an upgrade since you already have a pair which reduces the downtime

[Network Keith]

Hi,

Verify there are no captures running on the asa and clear the buffer. 

[Deepak Kumar]

Hi,

Share the logs, If there are any logs generated otherwise connect to TAC team.

[Tuba]

I did not have any logs, but it is a new version!